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【单选题】
一矩形基础,短边 =3m ,长边 =4m ,在长边方向作用一偏心荷载 F+G=1200KN 。问偏心矩至少为 时,基底不会出现拉应力?A.
0.5m
B.
0.57m
C.
0.67m
D.
1.33m
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【简答题】What’s the sequence of the four strokes?
【单选题】What is the first paragraph mainly about?
A.
Many voices in cell phones are genderless.
B.
Male or female, it’s hard to distinguish.
C.
Female voices dominate electronic devices.
【单选题】Task 1 We don’t have beds in the spacecraft, but we do have sleeping bags. During the day, when we are working, we leave the bags tied to the wall, out of the ways. At bedtime we untie them and take t...
A.
on the wall
B.
to their seats
C.
onto the flight deck
D.
anywhere they like
【简答题】把下列二进制数转换成八进制数 (10011011100) 2 =( ) 8
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